Question

If y varies directly as x, and y is 20 when x is 4, what is the constant of variation for this relation?

Answer 1

Answer:

Step-by-step explanation:

y = k*x                    This is the formula for a direct variation.

• y = 20
• x = 4                        Substitute these values into the direct variation

20 = 4 * k                        Divide by 4

20/4 = 4k/4

k = 5

Answer: the constant of variation is 5